<template>
  <div>
    <en-table-layout
      :tableData="tableData.data"
      :loading="loading"
      :selection-change="handleSelectionChange"
    >
      <div slot="toolbar" class="inner-toolbar">
        <div class="toolbar-btns">
          <el-button
            size="mini"
            type="primary"
            icon="el-icon-circle-plus-outline"
            @click="handleAddSpecs"
          >添加</el-button>
        </div>
        <div class="toolbar-search">
          <en-table-search @search="searchEvent" placeholder="请输入规格名称" />
        </div>
      </div>
      <template slot="table-columns">
        <el-table-column type="selection" width="100" />
        <!--规格名称-->
        <el-table-column prop="spec_name" label="规格名称" />
        <!--规格备注-->
        <el-table-column prop="spec_memo" label="规格备注" />

        <!--操作-->
        <el-table-column label="操作" width="350">
          <template slot-scope="scope">
            <el-button
              size="mini"
              type="primary"
              @click="handleEditSpec(scope.$index, scope.row)"
            >编辑规格</el-button>
            <el-button
              size="mini"
              type="primary"
              @click="handleEditSpecVal(scope.$index, scope.row)"
            >编辑规格值</el-button>
            <el-button
              size="mini"
              type="danger"
              @click="handleDeleteSpec(scope.$index, scope.row)"
            >删除</el-button>
          </template>
        </el-table-column>
      </template>
      <template slot="pagination-toolbar">
        <el-button type="danger" size="mini" @click="deleteTheSpecs">删除选中</el-button>
      </template>
      <el-pagination
        v-if="tableData"
        slot="pagination"
        @size-change="handlePageSizeChange"
        @current-change="handlePageCurrentChange"
        :current-page="tableData.page_no"
        :page-sizes="[10, 20, 50, 100]"
        :page-size="tableData.page_size"
        layout="total, sizes, prev, pager, next, jumper"
        :total="tableData.data_total"
      ></el-pagination>
    </en-table-layout>
    <el-dialog
      :title="specForm.spec_id ? '编辑规格' : '添加规格'"
      :visible.sync="dialogSpecVisible"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
      width="500px"
    >
      <el-form :model="specForm" :rules="specRules" ref="specForm" label-width="100px">
        <!--规格名称-->
        <el-form-item label="规格名称" prop="spec_name">
          <el-input v-model="specForm.spec_name"></el-input>
        </el-form-item>
        <!--规格备注-->
        <el-form-item label="规格备注" prop="spec_memo">
          <el-input v-model="specForm.spec_memo"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogSpecVisible = false">取 消</el-button>
        <el-button type="primary" @click="submitSpecForm('specForm')">确 定</el-button>
      </span>
    </el-dialog>
    <el-dialog
      :visible.sync="dialogSpecValuesVisible"
      :close-on-click-modal="false"
      :close-on-press-escape="false"
      title="编辑规格值"
      width="500px"
      class="spec-values-dialog"
    >
      <el-select
        v-model="specValues"
        multiple
        filterable
        allow-create
        default-first-option
        no-data-text="添加规格值"
        placeholder="输入后回车添加"
        :popper-append-to-body="false"
        popper-class="spec-values-popper"
        class="spec-values-select"
      />
      <p style="color:#666;font-size:12px;">规格值不可重复</p>
      <span slot="footer" class="dialog-footer">
        <el-button @click="dialogSpecValuesVisible = false">取 消</el-button>
        <el-button type="primary" @click="submitSpecValuesForm">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
import * as API_spec from '@/api/spec'

export default {
  name: 'specList',
  data() {
    return {
      /** 列表loading状态 */
      loading: false,

      /** 列表参数 */
      params: {
        page_no: 1,
        page_size: 10
      },

      /** 列表数据 */
      tableData: '',

      /** 被选数据 */
      selectedData: [],

      /** 添加、修改规格 dialog */
      dialogSpecVisible: false,

      /** 添加、修改规格 表单 */
      specForm: {},

      /** 添加、修改规格 规则 */
      specRules: {
        spec_name: [
          this.MixinRequired('请输入规格名称！'),
          { min: 1, max: 15, message: '长度在 1 到 15 个字符', trigger: 'blur' }
        ]
      },
      /** 编辑规格值 dialog */
      dialogSpecValuesVisible: false,
      /** 现有规格值 */
      selectedSpecValues: [],
      /** 编辑规格值 */
      specValues: [],
      /** 当前修改规格值的规格id */
      cur_spec_id: 0
    }
  },
  mounted() {
    this.GET_SpecsList()
  },
  methods: {
    /** 分页大小发生改变 */
    handlePageSizeChange(size) {
      this.params.page_size = size
      this.GET_SpecsList()
    },

    /** 分页页数发生改变 */
    handlePageCurrentChange(page) {
      this.params.page_no = page
      this.GET_SpecsList()
    },

    /** 当选择项发生变化 */
    handleSelectionChange(val) {
      this.selectedData = val.map((item) => item.spec_id)
    },

    /** 添加规格事件触发 */
    handleAddSpecs() {
      this.specForm = {}
      this.dialogSpecTitle = '添加规格'
      this.dialogSpecVisible = true
    },

    /** 修改规格事件 */
    handleEditSpec(index, row) {
      this.specForm = this.MixinClone(row)
      this.dialogSpecVisible = true
    },

    /** 删除规格事件 */
    handleDeleteSpec(index, row) {
      this.$confirm('确定要删除这个规格吗？', '提示', { type: 'warning' })
        .then(() => {
          this.DELETE_Specs(row.spec_id)
        })
        .catch(() => {})
    },

    /** 删除选中 */
    deleteTheSpecs() {
      if (this.selectedData.length < 1) {
        this.$message.error('您未选中任何规格！')
      } else {
        this.$confirm('确定要删除这些规格吗？', '提示', { type: 'warning' })
          .then(() => {
            this.DELETE_Specs(this.selectedData)
          })
          .catch(() => {})
      }
    },

    /** 修改规格值事件 */
    handleEditSpecVal(index, row) {
      API_spec.getSpecValues(row.spec_id).then((response) => {
        this.cur_spec_id = row.spec_id
        this.specValues = response.map((item) => item.spec_value)
        this.dialogSpecValuesVisible = true
      })
    },

    /** 搜索事件触发 */
    searchEvent(data) {
      this.params.page_no = 1
      this.params.keyword = data
      if (!data) delete this.params.keyword
      this.GET_SpecsList()
    },

    /** 添加、修改规格 表单提交 */
    submitSpecForm(formName) {
      this.$refs[formName].validate((valid) => {
        if (valid) {
          const { spec_id } = this.specForm
          if (!spec_id) {
            API_spec.addSpec(this.specForm).then((response) => {
              this.dialogSpecVisible = false
              this.$message.success('添加成功！')
              this.$refs[formName].resetFields()
              this.GET_SpecsList()
            })
          } else {
            API_spec.eidtSpec(spec_id, this.specForm).then((response) => {
              this.$message.success('保存成功！')
              this.dialogSpecVisible = false
              this.$refs[formName].resetFields()
              this.MixinSetTableData(
                this.tableData,
                'spec_id',
                spec_id,
                response
              )
            })
          }
        } else {
          this.$message.error('表单填写有误，请检查！')
          return false
        }
      })
    },

    /** 修改规格值 表单提交 */
    submitSpecValuesForm() {
      API_spec.saveSpecValues(this.cur_spec_id, this.specValues).then(
        (response) => {
          this.$message.success('保存成功！')
          this.dialogSpecValuesVisible = false
        }
      )
    },

    /** 获取规格列表 */
    GET_SpecsList() {
      this.loading = true
      API_spec.getSpecs(this.params)
        .then((response) => {
          this.loading = false
          this.tableData = response
        })
        .catch(() => {
          this.loading = false
        })
    },

    /** 删除规格 */
    DELETE_Specs(ids) {
      API_spec.deleteSpecs(ids).then((response) => {
        this.$message.success('删除成功！')
        this.GET_SpecsList()
      })
    }
  }
}
</script>

<style type="text/scss" lang="scss" scoped>
/deep/ .el-table td:not(.is-left) {
  text-align: center;
}

.inner-toolbar {
  display: flex;
  width: 100%;
  justify-content: space-between;
  padding: 0 20px;
}
/deep/ .spec-values-dialog {
  .el-dialog__body {
    padding: 0 20px;
  }
}
/deep/ .spec-values-select {
  width: 100%;
  .el-input__suffix,
  .spec-values-popper {
    display: none;
  }
  .el-input--suffix .el-input__inner {
    padding-right: 0;
  }
  .el-select__tags {
    max-width: 100% !important;
  }
  .el-select__tags-text {
    user-select: none;
  }
}
/deep/ .el-tag {
  white-space: normal;
  height: auto;
}
/deep/ .el-tag--mini {
  height: auto;
}
</style>
